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Amram, N; Artz, S; Augsten, K; Bachas, K; Bortolotto, V; Boumediene, D; Brooijmans, G; Brooks, T; Armadans, R Caminal; Campanelli, M; Caron, S; Cheremushkina, E; Christodoulou, V; Coniavitis, E; Conti, G; Costa, G; Dabrowski, W; Dai, T; Dearnaley, W J; Di Simone, A; Duschinger, D; Edgar, R C; Elles, S; Escalier, M; Filipuzzi, M; Fischer, A; Floderus, A; Gao, J; Gerbaudo, D; Gillam, T P S; Giorgi, F M; Gris, Ph; Hadavand, H K; Harrington, R D; Hellman, S; Henkelmann, S; Hristova, I; Karakostas, K; Kiuchi, K; Knapik, J; Kordas, K; Korol, A A; Koutsman, A; Kozhin, A S; Lockman, W S; Mader, W F; Mandić, I; Mantoani, M; Martin, V J; Mazza, S M; Messina, A; Morange, N; Morley, A K; Nemecek, S; Nuti, F; Oberlack, H; Odaka, S; Palka, M; Piccaro, E; Pinamonti, M; Pitt, M; Polini, A; Proissl, M; Prokofiev, K; Rodina, Y; Romaniouk, A; Rosbach, K; Scarcella, M; Schäfer, U; Schegelsky, V A; Schmitt, S; Schmitz, S; Scutti, F; Seiden, A; Serin, L; Shrestha, S; Simak, V; Smolek, K; Socher, F; Stanitzki, M M; Stark, J; Stonjek, S; Terada, S; Terashi, K; Thomas-Wilsker, J; Todorov, T; Todorova-Nova, S; Trefzger, T; Tsybychev, D; Valderanis, C; Verducci, M; Weber, M S; Wengler, T; Wiedenmann, W; Wilson, J A; Yildirim, E; Yoshihara, K; Zambito, S; Zhou, M; Zinser, M
The European physical journal. C, Particles and fields, 08/2016, Letnik: 76, Številka: 8Journal Article
A search for singly produced vector-like quarks, where can be either a quark with charge Formula: see text or a quark with charge Formula: see text, is performed in proton-proton collisions recorded with the ATLAS detector at the LHC. The dataset corresponds to an integrated luminosity of 20.3 fbFormula: see text and was produced with a centre-of-mass energy of Formula: see text TeV. This analysis targets Formula: see text decays where the boson decays leptonically. A veto on massive large-radius jets is used to reject the dominant Formula: see text background. The reconstructed -candidate mass, ranging from 0.4 to 1.2 TeV, is used in the search to discriminate signal from background processes. No significant deviation from the Standard Model expectation is observed, and limits are set on the Formula: see text cross-section times branching ratio. The results are also interpreted as limits on the coupling and the mixing with the Standard Model sector for a singlet quark or a quark from a doublet. quarks with masses below 0.95 TeV are excluded at 95 % confidence level, assuming a unit coupling and a BRFormula: see text, whereas the expected limit is 1.10 TeV.
